# Does Damage Reduction Stack In Pathfinder?

I have not been able to find it stated explicitly anywhere but does damage reduction from different sources stack?

For example I have a Lycanthropic character who has dr10/silver and I was looking at the spell Stoneskin which grants DR10/adamantine. Would these stack or would you simply use the highest one? (So if he was struck with silver you would use the adamantine or if hit with adamantine you would use silver.)

• Just to note: Having DR 10/silver and DR 10/adamantine is effectively the same as having DR 10/silver and adamantine and can be noted as such for succinctness. This doesn't really help if they're differing amounts (such as DR 10/silver and DR 5/-). – Bobson Jun 9 '14 at 17:42